Distinct Regionalization Patterns of Cortical Morphology are Associated with Cognitive Performance Across Different
C E Palmer1, W Zhao2, R Loughnan2
1Center for Human Development, University of California, San Diego, La Jolla, CA 92161, USA.
Cerebral Cortex (New York, N.Y. : 1991)
|April 7, 2021
Summary
Brain structure variations, not a single factor, influence diverse cognitive skills in children. Sociodemographic factors interact with brain-cognition links, impacting development.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Cognitive performance in childhood predicts academic and social success.
- Understanding neurobiological underpinnings of cognitive variability is crucial for development.
- The existence of a single neural substrate for diverse cognitive processes remains debated.
Purpose of the Study:
- To investigate the relationship between brain structure and cognitive performance in children.
- To determine if specific patterns of cortical surface area and thickness are associated with different cognitive tasks.
- To explore the influence of sociodemographic factors on brain-structure-cognition relationships.
Main Methods:
- Analysis of neuroimaging data (cortical surface area and thickness) from a large sample (N=10,145) of 9-11-year-old children.
- Controlling for global imaging measures to isolate regional brain structure effects.
- Examining associations between brain structure patterns and cognitive performance across various tasks.
- Investigating the impact of sociodemographic factors on these associations.
Main Results:
- Distributed patterns of cortical surface area and thickness, rather than localized regions, differentially relate to distinct cognitive task performances.
- Minimal overlap was observed between the brain structure patterns associated with different cognitive functions.
- Excluding sociodemographic factors increased the apparent similarity between brain-structure-cognition association patterns.
Conclusions:
- Cognitive abilities in children are supported by distributed, not singular, neural substrates.
- The interplay between sociodemographic factors, brain structure, and cognitive function is significant and warrants further investigation.
- Findings challenge theories positing a unified construct for intellectual development and highlight the complexity of brain-cognition relationships in development.
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